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April 17, 2020 2:41 pm 30 pts
the sum of residue of z+1÷{z^2(z-3) in book is -4÷9 but I got answer zero,please clarify this sir
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• Shanu arora
solution :for z=0 ,residue is -4/9 and for z=3 it's 4/9 , thus ths sum is 0 . but I think in question there must be a boundary or region must have been given for which the point z=...